The leash that rinses clean after a muddy walk and never smells
Is this the right fit?
- Best for
- recall and tracking training, water-loving dogs, muddy-trail hikers, and anyone who has thrown out a leash because they could not get the smell out
- Skip if
- Biothane is heavier than nylon at the same length, so a very long line has noticeable drag for a small dog
- Check before ordering
- Confirm the dimensions, exact model, included parts and return terms on the Amazon listing before ordering.
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The Viper Biothane K9 long line is a training and tracking lead made from coated polyester webbing rather than woven nylon. The coating is what changes the ownership experience: water, mud and pond scum wipe off under a tap, the line does not absorb odor or hold bacteria, and it will not stiffen or grow mildew after being left wet in a car. It stays flexible in cold weather where nylon goes rigid, and the solid brass hardware resists the corrosion that kills cheap snap hooks after a season of saltwater or slush. Available in long-line lengths for tracking and recall work. Best fit: recall and tracking training, water-loving dogs, muddy-trail hikers, and anyone who has thrown out a leash because they could not get the smell out.
Pros
- Rinses clean under a tap, so mud and pond water do not become a permanent smell
- Stays flexible in cold weather instead of going stiff like wet nylon
- Solid brass hardware resists the corrosion that ruins cheap snap hooks
- Does not absorb water, so it will not grow mildew left wet in a car
Cons
- Biothane is heavier than nylon at the same length, so a very long line has noticeable drag for a small dog
Frequently asked questions
What is Biothane actually made of?
It is polyester webbing with a bonded coating, usually TPU or PVC. The webbing gives it strength and the coating makes it waterproof and non-absorbent, which is why it cleans up so easily.
Will it hurt my hands on a hard pull?
The coated surface can cause friction burn if a strong dog runs the line through a bare hand, the same as any long line. Gloves are standard practice for tracking work with a long lead.
How do I clean it?
Rinse under running water and wipe dry, or wash with soap and water for anything stubborn. There is no absorbed dirt to soak out because the coating is non-porous.
Is it strong enough for a large dog?
Yes, Biothane long lines are standard equipment in Schutzhund and police K9 training. The usual failure point on any leash is the hardware, and this one uses solid brass rather than plated pot metal.
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